Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or Louisiana for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Louisiana only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. Louisiana (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

William Zollinger (NPI 1952402042)

Field	Value
Entity Type	Individual
Organization	William Zollinger
Address	411 Calypso St
City	Monroe
State	LA
ZIP	71201
Taxonomy	Specialist
NPI Enumerated	September 25, 2006

Payer Source	Total Paid
Medicare	$1.1M
Medicaid	$0

Key Findings

The provider’s Medicare billing mix is concentrated in advanced external radiation therapy services, with dominant codes tied to IMRT and treatment delivery. Top-revenue items include G6015 ($556K, 49.2% of Medicare revenue) and 77014 ($192.8K, 17.1% of Medicare revenue), and the clinical descriptions for these codes (intensity-modulated treatment delivery and related treatment/simulation services) point to a practice organized around high-volume radiotherapy sessions and technical delivery rather than primary-care evaluation. Total Medicare revenue is $1.1M.

Revenue concentration is high: the precomputed top-3 share shows the three largest Medicare codes account for 73.0% of this provider's total Medicare revenue. Those top three are G6015 ($556K, 49.2%), 77014 ($192.8K, 17.1%), and 77301 ($75.7K, 6.7%), indicating that a small set of procedure types drives most of incoming Medicare dollars and the practice is materially dependent on these therapy codes.

Payer mix is effectively single-payer: total Medicare revenue is $1.1M and there is no Medicaid billing on file, so this provider operates without recorded state Medicaid volume. That absence of Medicaid revenue means financial exposure and patient mix are concentrated on Medicare beneficiaries and commercial/self-pay channels (if present), rather than diversified across both public payers.

Competitive standing on key delivery codes is strong nationally: G6015 ranks #79 of 1429 providers (95th percentile; notably above typical national volume) and 77014 ranks #106 of 4303 providers (98th percentile; notably above typical national volume). 77427 also shows elevated volume (rank #291 of 4720, 94th percentile; notably above typical national volume), which together indicate this provider is a high-volume operator for specific radiation delivery and simulation services relative to national peers.

Other parts of the clinical billing profile are more typical or modest. For example, 77301 (IMRT planning) generates $75.7K and ranks #898 of 3815 providers (76th percentile; typical, unremarkable volume), while several planning and physics codes (e.g., 77336 $26.7K, rank #175 of 1488, 88th percentile) sit in mid-to-upper percentiles described as typical or unremarkable, suggesting the practice’s exceptional volumes are concentrated in delivery/simulation rather than broad across every planning/physics code.

Operationally, the code mix shows a technical-treatment focus rather than office-based evaluation and management: E/M codes such as 99214 ($8.6K, 0.8% of Medicare revenue) and 99205 ($7K, 0.6% of Medicare revenue) contribute only small shares of Medicare revenue compared with treatment codes. This implies staffing, equipment, and throughput are likely optimized for radiation delivery and IMRT workflows rather than high-volume outpatient clinic visits.

The provider has long tenure in the enrollment file—NPI enumerated 2006-09-25 (~20 years ago)—which supports interpretation that current billing patterns reflect an established practice rather than a new entrant. Combined with concentrated Medicare revenue of $1.1M and the strong national ranks on several therapy delivery codes, the record depicts a sustained, specialist radiation service operation with focused clinical volume drivers.

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

21 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
G6015	Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session	2,190	$250	$556K
77014	N/A	2,190	$90	$192.8K
77301	Intensity modulated radiotherapy (IMRT) uses advanced computer technology to deliver very precise radiation beams that target and destroy the cancerous cells while avoiding the surrounding healthy…	60	$1,310	$75.7K
77427	Radiation therapy utilizes ionizing radiation beams that are directed at cancerous cells in order to destroy them. The radiation, damages the DNA (the genetic material) in the cell, thus preventing…	430	$150	$62.9K
G6013	Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev	330	$170	$55.4K
G6012	Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev	170	$170	$28.9K
77336	This code is for reporting ongoing medical physics consultation. When a patient is undergoing radiation treatment for a particular span of time with a number of therapy sessions every week, the…	440	$60	$26.7K
G6002	Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy	370	$50	$19.8K
77338	In this procedure, the provider participates in the design and construction of one or more multi–leaf collimator, MLC, devices for intensity modulated radiation therapy, IMRT. IMRT is a radiotherapy…	60	$340	$19.5K
77300	Radiation therapy is one of the most effective treatment methods for cancerous tumors. Due to its negative side effects like damage to the healthy cells, radiation therapy involves thorough planning…	320	$50	$15.2K

Showing 1–10 of 21

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 21 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Louisiana Distribution

William Zollinger — 1 of 21 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Louisiana

Full comparison — all codes billed, vs. state median

21 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
G6015	2	20	680	$250	$243.3K
77014	2	50	600	$70	$47.6K
77301	8	50	30	$760	$31K
77427	6	60	180	$150	$30.4K
G6012	7	10	160	$160	$28K
G6013	2	10	150	$160	$25.2K
77280	13	40	40	$170	$22.4K
99214	3,358	6,670	110	$80	$16.5K
77336	3	20	180	$60	$14.6K
77338	9	50	30	$260	$11.1K

Showing 1–10 of 21

Related Providers

Other providers that share a Tax Identification Number (TIN) with William Zollinger, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
James Keane	AR	Procedural Dermatology Physician	$4.9M	$0
Harshivinderjit Bains	TX	Ophthalmology Physician	$4.1M	$0
Balagopalan Nair	AR	Hematology & Oncology Physician	$4.1M	$0
Amar Patel	TX	Ophthalmology Physician	$3.8M	$0
Thomas Bochow	TX	Ophthalmology Physician	$3.6M	$0
Richard Kinsey	TN	Anatomic Pathology & Clinical Pathology Physician	$3.3M	$147.3K
Jyothi Mallepalli	LA	Rheumatology Physician	$3.2M	$0
Kirtan Koticha	LA	Hematology & Oncology Physician	$3.1M	$0
Rochelle Robicheaux Metoyer	LA	Rheumatology Physician	$2.9M	$0
Jonathan Tzu	TX	Ophthalmology Physician	$2.8M	$0

Nearby Providers

Other providers in the same ZIP code as William Zollinger, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Care Solutions, Inc.	LA	Child Intellectual and/or Developmental Disabilities Respite Care	$0	$49.8M
Affinity Health Group, LLC	LA	Family Medicine Physician	$0	$34.6M
Ascent Health, Inc	LA	Community/Behavioral Health Agency	$0	$31.4M
Cognitive Development Center Personal Care Services	LA	Nursing Care Agency	$0	$27.8M
St Francis Medical Center, Inc	LA	General Acute Care Hospital	$0	$27.2M
Enrich Personal Care Services, LLC.	LA	Preferred Provider Organization	$0	$26.7M
Southern Center For Children And Families, Inc.	LA	Community/Behavioral Health Agency	$0	$24.5M
Afnb Home Care LLC	LA	In Home Supportive Care Agency	$0	$19.3M
D & D Community Connections	LA	Preferred Provider Organization	$0	$19.2M
Hearts Desire LLC	LA	In Home Supportive Care Agency	$0	$17.3M

William Zollinger — Billing Profile & Reimbursement Data

Sign up for William Zollinger — Billing Profile & Reimbursement Data policy alerts

William Zollinger — Billing Profile & Reimbursement Data

Sign up for William Zollinger — Billing Profile & Reimbursement Data policy alerts

Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References